PsySH - A runtime developer console, interactive debugger and REPL for PHP.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Jupyter - Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
RunKit - RunKit notebooks are interactive javascript playgrounds connected to a complete node environment right in your browser. Every npm module pre-installed.
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.